Is NAD+ an oxidizing agent or reducing agent?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the IMAT Biology Exam with focused multiple-choice questions. Use hints and explanations to enhance your preparation. Get ready for your exam success!

Multiple Choice

Is NAD+ an oxidizing agent or reducing agent?

Explanation:
NAD+ acts as an oxidizing agent because it takes electrons from other molecules. In redox reactions, an oxidizing agent is the substance that accepts electrons; NAD+ accepts two electrons and a proton to become NADH, while the molecule that donated the electrons becomes oxidized. This is seen in many metabolic steps, such as glycolysis, where NAD+ is reduced to NADH by the substrate. NADH, in turn, can donate electrons to other acceptors and is thus the reducing agent. The other options don’t fit: a catalyst speeds reactions without being consumed, and a buffer resists pH changes.

NAD+ acts as an oxidizing agent because it takes electrons from other molecules. In redox reactions, an oxidizing agent is the substance that accepts electrons; NAD+ accepts two electrons and a proton to become NADH, while the molecule that donated the electrons becomes oxidized. This is seen in many metabolic steps, such as glycolysis, where NAD+ is reduced to NADH by the substrate. NADH, in turn, can donate electrons to other acceptors and is thus the reducing agent. The other options don’t fit: a catalyst speeds reactions without being consumed, and a buffer resists pH changes.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy